Weather StoryAlmanac, microseasons, and the day's weather story.

Etna, Pennsylvania Weather

Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →

Etna weather forecast — hour by hour, 7-day outlook, NOAA radar

Etna, PA
Saturday, July 4 at 6:53 AM
72
°
Clear
Feels like
79°
Humidity
86%
Wind
1 mph
Sunrise
1:54 AM
Sunset
4:53 PM
Etna, PA
Hour by hour · 24h
24-Hour ForecastEtna, PA: 24-hour forecast. Temperatures range from 72 to 96 degrees Fahrenheit with a 32% chance of precipitation at 6 PM.
L 72°H 96°
Etna, PA
7-day forecast
  1. Today
    Jul 4
    Light Rain
    33%
    0.09″
    96°72°—
  2. Sunday
    Jul 5
    Rain
    79%
    0.30″
    88°72°-8°
  3. Monday
    Jul 6
    T-storm w/ Hail
    71%
    0.03″
    80°68°-8°
  4. Tuesday
    Jul 7
    Light Drizzle
    33%
    —
    79°64°-1°
  5. Wednesday
    Jul 8
    Overcast
    10%
    —
    86°60°+7°
  6. Thursday
    Jul 9
    Light Drizzle
    48%
    —
    86°66°0°
  7. Friday
    Jul 10
    Overcast
    54%
    —
    83°65°-3°
Etna, PA
Next 24 hours · Mild now
HOT 90°65°85°105°6a12p6p12anow 72°high 96°low 72°PRECIP %
Etna, PA
Anemometer · 24h winds · from true
NESW
From · True
WSW
256° · veering 36°
Direction
WSW
256°
Sustained
1
mph
Gust
5
mph
Peak 24h
19
avg 5
Beaufort · 1 · LIGHT AIR
0
CALM
<1
1
LIGHT AIR
1–3
2
LIGHT BRZ
4–7
3
GENTLE BRZ
8–12
4
MOD BRZ
13–18
5
FRESH BRZ
19–24
6
STRONG BRZ
25–31
7
NEAR GALE
32–38
24h · sust vs gust · mph
avg 5 · pk 19 @ 12:00a
01020MPHB1B2B3B4B5-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 211SUSTGUST
−24h−18h−12h−6hnow
Light breeze veering 36° from the wsw.
Etna, PA
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
985.8
-0.2 mb in 3h · steady · 29.11 inHg
Now
985.8
mb
3h
-0.2
mb
12h
+0.3
mb
24h
-2.1
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 985–988
9809859909951000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY1030-21h-18h-15h-12h-9h-6h-3h-24hNOW988.0984.8985.2
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Etna, PA
Air quality
58
AQI
Moderate
→-1 in 6h

AQI 58 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 19.6 µg/m³ (AQI 71) with a 0.98 fine-to-coarse ratio and 1 mph wind — combustion smoke trapped in calm air, not road dust.

OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.

PM 2.5DRIVERModerate
19.6μg/m³
PM 10Good
20μg/m³
NO₂Good
20μg/m³
OzoneGood
51μg/m³
UV IndexLow
0.0

What's driving it

PM × Wind × Precip

PM2.5 at 19.6 µg/m³ (AQI 71) with a 0.98 fine-to-coarse ratio and 1 mph wind — combustion smoke trapped in calm air, not road dust.

PM2.5/PM10
0.98
Wind
calm
Recent rain
0h in last 6h
Pattern
stagnant smoke

Trends

Seven days of AQI and PM2.5.

Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).

7-DAY AQI TREND50100SATSUNMONTUEWEDTHUFRISAT7-DAY PM2.5 TREND · μg/m³420
Etna, PA
Sky cover · visibility · 24h
Cloud cover
0%
CLEAR
100%0%−24h−18h−12h−6hnow
Visibility
30.8mi
UNLIMITED
84 mi0 mi−24h−18h−12h−6hnow
Earth · GOES-19 ABI
Full Disk · Visible · GeoColor
GOES-19 full disk Visible · GeoColor
True-color daytime, blue/IR sandwich at night
10:53 UTC · Etna, PA · NOAA NESDIS / STAR · up to 10848 px
Continental US · GOES-19 ABI
CONUS Sector · Visible · GeoColor
GOES-19 CONUS Visible · GeoColor
Daytime true-color, blue-light/IR sandwich at night
10:53 UTC · Etna, PA · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Etna, PA
Satellite · infrared · animated
Etna, PA
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Etna, PA
Almanac · Saturday, July 4
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
5:22 AM
Sunrise
1:54 AM
Daylight
14h 59m
Sunset
4:53 PM
Civil dusk
9:27 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Etna, PA
The moon
Waning Gibbous
82% illuminated
Moonrise
11:14 PM
Moonset
10:23 AM
In sign
♓︎ Pisces
Etna, PA
Microseason
Jul 1–5

Cicadas claim the afternoon

plant
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Etna at a glance

  • Today vs. normal: 72°F — typical for the season
  • Last frost: April 19 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

15-Day Forecast — Etna

  1. Sat96°72°33%
  2. Sun88°72°79%
  3. Mon80°68°71%
  4. Tue79°64°33%
  5. Wed86°60°10%
  6. Thu86°66°48%
  7. Fri83°65°54%
  8. Sat84°64°37%
  9. Sun83°67°29%
  10. Mon81°62°15%
  11. Tue84°67°15%
  12. Wed74°61°27%
  13. Thu83°58°19%
  14. Fri89°62°45%
  15. Sat81°65°35%

Forecast data from Open-Meteo (CC BY 4.0).

Right now in the garden

Peak growing season

As of July 4, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.

SPC Convective Outlook

Storm Prediction Center — Etna

SPC has placed Etna in the Slight Risk category for severe thunderstorms today.

  • TODAYSLGTSlight Risk
  • TOMORROWMRGLMarginal Risk
  • DAY 3TSTMGeneral Thunderstorms

Scattered severe storms possible. A few tornadoes, hail, and damaging wind gusts possible.

Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.

January 1–5: The year turns in silence.January 6–10: Ice thickens on still water.January 11–15: Shortest shadows lengthen.January 16–20: Pheasants begin to call.January 21–25: Springs begin to thaw.January 26–31: Chickadees announce dawn.February 1–5: East wind softens the frost.February 6–10: Sap begins to rise.February 11–15: First snowdrops appear.February 16–20: Red-winged blackbirds return.February 21–25: Rain begins to replace snow.February 26–28: Skunk cabbage pushes through ice.March 1–5: Ice withdraws from the reservoir.March 6–10: Crocuses open to weak sun.March 11–15: Peepers call from the marsh.March 16–20: Woodcocks spiral at dusk.March 21–25: Equinox — light overtakes dark.March 26–31: Forsythia opens along the fences.April 1–5: Cherry blossoms drift like snow.April 6–10: Warblers appear in the understory.April 11–15: Magnolias bloom and fall in a day.April 16–20: Dogwoods float above the forest.April 21–25: Lilacs perfume the evening.April 26–30: Last frost releases the garden.May 1–5: Warblers flood the Ramble.May 6–10: Tulip poplars light their candles.May 11–15: Shad run up the rivers.May 16–20: Roses open along the stoops.May 21–25: Firefly scouts appear at dusk.May 26–31: Strawberries ripen in the sun.June 1–5: Fireflies rise from the lawn.June 6–10: Elderflowers open in hedgerows.June 11–15: Solstice approaches — longest light.June 16–20: Honeysuckle sweetens the night.June 21–25: Solstice — the sun stands still.June 26–30: Lightning bugs drift through oaks.July 1–5: Cicadas claim the afternoon.July 6–10: Queen Anne's lace lines the roads.July 11–15: Thunder builds each afternoon.July 16–20: Corn reaches for the tassels.July 21–25: Dog days settle in the haze.July 26–31: Katydids begin their chorus.August 1–5: Night falls a minute earlier.August 6–10: Sunflowers face the morning.August 11–15: Goldenrod begins to bloom.August 16–20: Crickets pulse through warm nights.August 21–25: First cool morning surprises.August 26–31: Monarchs stage for flight.September 1–5: School buses reappear.September 6–10: Asters purple the roadsides.September 11–15: Hawk migration over the Hudson.September 16–20: Equinox — dark overtakes light.September 21–25: Apples hang heavy on the branch.September 26–30: Geese begin to chevron south.October 1–5: Witch hazel blooms as others fade.October 6–10: Maples begin to blaze.October 11–15: Frost paints the garden black.October 16–20: Oaks turn bronze and russet.October 21–25: Leaves rattle down the gutters.October 26–31: Clocks fall back — dusk at five.November 1–5: Ginkgos drop overnight.November 6–10: Last leaves cling stubbornly.November 11–15: Juncos arrive from the north.November 16–20: Bare branches reveal the sky.November 21–25: First flurries dust the rooftops.November 26–30: Woodsmoke curls through the block.December 1–5: Darkness settles before dinner.December 6–10: Holly and winterberry persist.December 11–15: Shortest day approaches.December 16–20: Ice begins to form at the edges.December 21–25: Solstice — the sun begins return.December 26–31: The year turns in silence.🌱February 14 — First skunk-cabbage spathes thaw their way up☀️March 20 — Spring equinox — day and night balance🌸April 5 — Cherry blossoms peak in the parks🐦May 10 — Warbler migration peaks along the coast✨May 25 — First fireflies scout the meadows at dusk🌞June 21 — Summer solstice — longest day🦗July 25 — Peak cicada chorus in the afternoons🌊August 18 — Warmest sea-surface temperatures of the year🍂September 22 — Autumn equinox — the slow turn❄️October 25 — First widespread frost in the suburbs🍁November 10 — Peak leaf color across the Hudson Valley🌙December 21 — Winter solstice — longest night

Microseason · July 1–5

Cicadas claim the afternoon

Annual cicada buzz begins, peaking in the heat of the day.

Day 185 of 365 · Wedge 37 of 72

The solar year drawn as a wheel of 72 five-day windows. Each wedge is one microseason; the four colored arcs mark winter, spring, summer, and autumn; the small icons sit at notable phenological events. The crimson pointer creeps clockwise as the year turns.

Planting calendar

MonthPlantHarvest
January——
February——
March——
Aprillettuce, peas, spinach, radishes—
Maylettuce, peas, spinach, radishes, tomatoes, peppers, beans, squashlettuce, peas, radishes
Junetomatoes, peppers, beans, squashlettuce, peas, radishes
Julytomatoes, peppers, beans, squashtomatoes, beans, summer squash
August—tomatoes, beans, summer squash
Septemberfall brassicas, garlic (overwinter), carrotstomatoes, beans, summer squash
Octoberfall brassicas, garlic (overwinter), carrotswinter squash, tomatoes (last)
November——
December——

A year in weather

July is Etna's warmest stretch (~73°F) and January its coldest (~28°F); precipitation crests in May at 5.4 inches and ebbs in February to 3.1 inches.

MonthMean tempPrecipRainy days
January28°3.4″20
February31°3.1″18
March39°4.1″19
April51°4.3″20
May59°5.4″19
June68°4.7″19
July73°4.4″18
August73°4.0″18
September66°3.4″16
October55°3.2″15
November41°3.5″18
December32°3.9″20

Regional context

Etna swings from 28°F in January to 73°F in July (46°F) per NOAA NCEI 1991-2020 normals; precipitation in Etna runs about 47.4 inches on roughly 221 measurable days.

No season owns Etna's rain: May reaches 5.4 inches across 19.3 days and February keeps 3.1 inches on 18.2, an even spread through Etna's year. It is a balanced pattern Etna shares with places like Sharpsburg, PA, Millvale, PA and Aspinwall, PA.

Etna reaches its last hard frost near mid-April; that is the cue for kale, peas, spinach, and parsnips. Tomatoes and peppers do best set out two weeks later in Etna, once nights clear the mid-40s°F. By mid-November, frost is back in Etna — protect or harvest anything tender. A creek-bottom lot in Etna can lag Etna's last frost 7-10 days behind a south slope.

Similar climates: Sharpsburg, PA, Millvale, PA, Aspinwall, PA, Glenshaw, PA, Fox Chapel, PA.

Frequently asked

When does it freeze in Etna?
Etna's last spring frost lands near mid-April, and in Etna the first fall frost follows around mid-November.
What is the rainy season in Etna?
Rainfall in Etna peaks in May near 5.4 inches, out of about 47 inches annually.
What is the warmest month in Etna?
On average July tops the year in Etna at about 73°F.
What is the coldest month in Etna?
The coldest stretch in Etna falls in January, around 28°F on average.
When can I start a vegetable garden in Etna?
Hardy spring crops go in near mid-April in Etna; tender peppers and squash wait 10–14 days.
How many rainy days does Etna get?
Expect roughly 221 wet days a year in Etna.
What hardiness zone is Etna?
Since January in Etna averages 28°F, Etna's USDA zone follows that floor — confirm it by ZIP.
What is the 10-day forecast for Etna?
Etna's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
Will it rain this week in Etna?
See this week's day-by-day rain chances for Etna in the daily forecast above, and the next 24 hours in the hourly chart.
What is the weather like right now in Etna?
Current conditions for Etna and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
How often is the Etna forecast updated?
The Etna forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
When are sunrise and sunset in Etna?
Today's sunrise and sunset times for Etna are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
How accurate is the weather forecast for Etna?
The next few days in Etna's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.

Climate

In Etna, Pennsylvania, the warm-summer humid continental climate runs from about 28°F in January to 73°F in July, a 45°F seasonal range.

Yearly precipitation in Etna totals around 47 inches, spread over about 221 days of rain or snow.

Etna's 45°F range, set by its 40.5°N position, drives frost timing and what thrives in Etna.

All cities in Pennsylvania →

Pittsburgh, PA weather →

ZIP codes in Etna

  • 15223

Climate normals from the Open-Meteo Climate API. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.